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Finding the Fourth Proportional to 92,213.30, 138,319.95 and 92,213.30

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Solution

The fourth proportional to 92,213.30, 138,319.95 and 92,213.30 is: 138,319.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,213.30 : 138,319.95 = 92,213.30 : x
  2. Step 2: Convert to fraction form
    92,213.30/138,319.95 = 92,213.30/x
  3. Step 3: Cross multiply
    92,213.30x = 138,319.95 × 92,213.30
  4. Step 4: Simplify right side
    92,213.30x = 12,754,939,045.34
  5. Step 5: Solve for x
    x = 12,754,939,045.34/92,213.30
  6. Step 6: Final answer
    x = 138,319.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.